Reticon探测器用于位置监测的信号处理方法和精度分析

Signal Process and Accuracy Analyses of the Reticon Detector Used for Precise Positional Measurement

利用低纬子午环上配备的Reticon探测器的输出信号 ,采用重心方法和互相关分析方法分析测定了Reticon用于位置监测的精度。结果表明 :在仪器系统保持稳定的情况下 ,Reticon监测位置变化的精度优于± 0 .0 1像素 (单次测定的标准误差 )。

By using the output signals of the Reticon detectors attached to the Lower Latitude Meridian Circle,two methods,moment method and cross-correlation function method,are used to analyze the precision of positional measurement.The results show that when the measured system is stable,the precision of the Reticon used to detect the variation in position is better than ±0.01 pixel for a single measurementment